JPH0598707A - Construction method of unit building - Google Patents

Abstract

PURPOSE:To reduce work at the construction site when a staircase is installed across two building units. CONSTITUTION:In a factory, a first unit 18 having a lower part 28 of a staircase and a second building unit 20 having an upper part 30 of the staircase are fabricated. And these building units 18, 20 are transported to the construction site, where the units 18, 20 are arranged adjacently to each other and then the part 28 is connected to the part 30. Consequently, work at the construction site can be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of constructing a unit building, and more particularly to a method of constructing a unit building suitable for a unit building having a staircase extending between two building units.

[0002]

[Background Art] In recent years, the unit construction method, which has come to be widely used for housing construction, pre-manufactures a building unit in which various parts constituting a house are assembled in advance, and at a construction site,
A house is constructed by arranging and stacking these building units at predetermined positions on the foundation. Such a unit construction method has the advantages of simplifying the work at the construction site and shortening the construction period.

FIG. 5 and FIG. 6 are elevational views showing the outline of a conventional building unit in which stairs are mounted in the building unit.

As shown in FIG. 5, when a staircase is provided in a unit building, a unit 10 in which a staircase 12 is incorporated inside a building unit (hereinafter abbreviated as "unit") 10 is produced in advance in a factory, and The stairs are installed inside the house by arranging the units 10 on the foundation of the construction site and connecting them with other adjacent units. Alternatively, as shown in FIG. 6, the unit 1 having the folding stairs 16 installed therein.
4 is manufactured in a factory in advance, and at the construction site, the stairs are installed by arranging them on a foundation and connecting them with other units, as in the case of FIG.

However, attaching the stairs to only one building unit limits the floor plan of the room and the size of the landing on the upper and lower floors due to the relationship with the adjacent building units, and therefore the degree of freedom in designing is increased. There was a problem that it was significantly impaired. For this reason, there are cases where it is desired to install the stairs so as to straddle two adjacent building units.

[0006] In such a case, in the past, in the construction site, the stairs were installed on site in the two building units without the stairs that were already arranged.
For example, transport the stairs produced in the factory to the construction site,
At the site, it was constructed so as to span two units.

[0007]

However, as described above, performing the installation work of stairs at the site increases the amount of work at the construction site, and the purpose of the unit construction method is to simplify the work and shorten the construction period. It is contrary to. In addition, since the stairs themselves are heavy, it is difficult to install the stairs at the construction site, which causes a delay in the construction period.

The present invention has been made in view of the above circumstances, and a building unit capable of reducing the amount of work at a construction site when a stairway is installed while straddling two building units. The purpose is to provide a construction method.

[0009]

According to the present invention, in a factory, first and second building units are arranged adjacent to each other, and a lower portion of a stair is installed inside the first building unit. At the same time, after installing the upper part of the stairs, which is continuous with the lower part of the stairs, inside the second building unit, the first and second building units are transported to the construction site, and at the construction site, After arranging the first and second building units adjacently, the lower part and the upper part of the stairs are connected.

[0010]

According to the present invention, first, in a factory, a first unit having a lower portion of a staircase and a second unit having an upper portion thereof are provided.
Produce building units. Then, these first and second building units are transported to a construction site, and at the construction site, the first and second building units are arranged adjacent to each other, and the lower portion and the upper portion of the stairs are arranged. Link.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a method for constructing a unit building according to the present invention will be described below in detail with reference to the accompanying drawings. 1 and 2
FIG. 3 is a perspective view showing an outline of a building unit used in the construction method of a unit building of the present embodiment, and FIG. 3 is a schematic sectional view showing an outline of a connecting structure of a lower staircase and an upper staircase in the present embodiment. FIG. 4 is a schematic cross-sectional view showing an outline of a connecting structure of a lower staircase and an upper staircase in another embodiment.

As shown in FIGS. 1 and 2, the unit 1
8 and 20 are mainly four columns 22, 22, ... And upper beams 24, 24 ... Which connect between the upper ends and the lower ends of these four columns.
.. and the like. Unit 18
A lower staircase 28, which is a lower part of the staircase, is installed at. The upper end of the lower staircase 28 has a lower staircase supporting beam 3 of C channel material which is horizontally installed between the columns 22 and 22.
It is supported by 4. Further, the lower end of the lower staircase 28 is supported by a joist 35 installed between the lower beams 26, 26 via a floor material (not shown).

On the other hand, in the unit 20, an upper staircase 30, which is an upper part of the staircase, is installed in the same manner as the lower staircase 28, and the lower end thereof is an upper staircase support beam 36 of C channel material.
The upper ends are supported by the beam 37, respectively. The upper stairs 30 and the lower stairs 28 are integrated by connecting the units 18 and 20 in a state of being adjacent to each other.
The stairs span between 8 and 20.

As shown in FIGS. 1 and 2, the lower staircase 28 and the upper staircase 30 are formed by combining side plates 28A, 30A, step plates 28B, 30B, riser plates 28C, 30C, etc., respectively. However, lower stairs 28
The uppermost footboard 28B is a side board 28A and a riser board 28.
It is detachably attached to C.

As shown in FIG. 3, the lower stair support beam 34 is provided with a connecting hole 38 for connecting the lower stair 28 and the upper stair 30. Also, the upper stair support beam 36
A bolt 40 is embedded at a position corresponding to the connecting hole 38 when the units 18 and 20 are connected, and the bolt 40 projects toward the unit 18.
Therefore, by arranging the units 18 and 20 adjacent to each other, the bolt 40 is inserted into the connecting hole 39. For this reason, the uppermost footboard 28 of the lower staircase 28
The lower step 28 and the upper step 30 are connected only by tightening and fixing the bolt 40 with the nut 42 with B removed.

After tightening the nut 42, as shown by the chain double-dashed line, when the footboard 28B is attached to the uppermost part of the lower staircase 28, the lower staircase 28 and the upper staircase 30 become the unit 18,
It will be a continuous staircase spanning 20 spaces. Usually, the connecting work between the lower staircase 28 and the upper staircase 30 is performed at the construction site, but since the lower staircase 28 and the upper staircase 30 already installed in the units 18 and 20 are simply fixed, A small amount of work is required.

When the unit building construction method of the present embodiment is carried out using the units 18 and 20 constructed as described above, the procedure is as follows.

First, at the factory, the units 18, 20 to which the lower stairs 28, the upper stairs 30 and predetermined members such as work materials are attached are manufactured. Then, along with the other units, these units 18, 20 are transported to the construction site. Next, these units are arranged adjacent to a predetermined position on the foundation. At this time, as described above, the bolt 40 is inserted into the connection hole 38 of the upper stair support beam 36,
As shown in FIG. 3, with the step plate 28B removed, the bolt 40 is tightened and fixed by the nut 42, and the lower staircase support beam 34 and the upper staircase support beam 36 are fixed to each other.

Then, the lower staircase 28 and the upper staircase 30
And are connected near the center, and the footboard 28B is connected to the lower staircase 28
Mounted on top of, a continuous staircase is installed between the units 18, 20. Further, the upper beams 24, 24 above the lower staircase 28 and the upper staircase 30, respectively.
Remove. This is to ensure an overhead height when climbing the stairs.

As described above, according to the present embodiment, after both units 18 and 20 are arranged adjacent to each other on the construction site, the lower staircase 28 and the upper staircase 30 which are already installed can be fixed. The stairs can be constructed across both units 18, 20. Therefore, the work of constructing stairs at the construction site, which was conventionally necessary, is unnecessary, and the amount of work at the site can be reduced. As a result, the work can be simplified and the construction period can be shortened, and the original advantages of the unit construction method can be utilized. In addition, the lower stair support beam 34 and the upper stair support beam 36 improve the strength of the units 18, 20 and the stairs themselves.

In this embodiment, the upper beams 24 and 24 are removed after being connected to the units 18 and 20 in order to secure the overhead height. However, the present invention is not limited to this, and as shown in FIG. The number of lower stairs 44 to be installed is about three, and the upper stairs 46 to be installed in the unit 20 are
The number of steps may be increased. According to this, as compared with the case of FIG. 3, since the stairs move to the right as a whole, it is possible to secure an overhead height above the stairs. Therefore, it is not necessary to remove the upper beam 24, and the work in the field can be saved.

[0022]

As described above, according to the present invention,
By assembling the first and second building units to which the upper part and the lower part of the stairs are previously attached at the factory at the construction site, the stairs can be installed across both units. This makes it possible to reduce the amount of work at the construction site.

[Brief description of drawings]

FIG. 1 is a perspective view showing an outline of a building unit used in a method for constructing a unit building according to the present embodiment.

FIG. 2 is a perspective view showing an outline of a building unit used in the method for constructing a unit building according to the present embodiment.

FIG. 3 is a partial cross-sectional view schematically showing a connecting structure of a lower staircase and an upper staircase in the present embodiment.

FIG. 4 is a partial cross-sectional view schematically showing a connecting structure of a lower staircase and an upper staircase in another embodiment.

FIG. 5 is a schematic elevational view of a conventional building unit with stairs mounted within the unit.

FIG. 6 is a schematic elevational view of a conventional building unit with stairs mounted within the unit.

[Explanation of symbols]

 18 Units (First Building Unit) 20 Units (Second Building Unit) 28 44 Lower Stairs 30 46 Upper Stairs 34 Lower Stair Support Beams 36 Upper Stair Support Beams

Claims (1)

[Claims] 1. In a factory, first and second building units are arranged adjacent to each other, a lower part of a stairway is installed inside the first building unit, and the second building unit is installed. After installing the upper part of the stairs which is continuous with the lower part of the stairs inside, the first and second building units are transported to the construction site, and the first and second building units are transferred to the construction site. A method of constructing a unit building, comprising arranging adjacently and connecting a lower part and an upper part of the stairs.